NAME

umass — USB Mass Storage Devices driver

SYNOPSIS

To compile this driver into the kernel, place the following line in your kernel
configuration file:
devicescbusdeviceusbdeviceumass
Alternatively, to load the driver as a module at boot time, place the following line in
loader.conf(5):
umass_load="YES"

DESCRIPTION

The umass driver provides support for Mass Storage devices that attach to the USB port.
To use the umass driver, usb(4) and one of uhci(4) or ohci(4) must be configured in the
kernel. Additionally, since umass uses the SCSI subsystem and sometimes acts as a SCSI
device, it requires da(4) and scbus(4) to be included in the kernel.

EXAMPLES

device umass
device scbus
device da
device pass
Add the umass driver to the kernel.
camcontrol rescan 0
Rescan a Zip drive that was added after boot. The command above assumes that the Zip drive
is on the first SCSI bus in the system.
camcontrol rescan 0:0:0
camcontrol rescan 0:0:1
camcontrol rescan 0:0:2
camcontrol rescan 0:0:3
Rescan all slots on a multi-slot flash reader, where the slots map to separate LUNs on a
single SCSI ID. Typically only the first slot will be enabled at boot time. Again, this
assumes that the flash reader is the first SCSI bus in the system.
bsdlabel -w da0 zip100
newfs da0c
mount -t ufs /dev/da0c /mnt
Write a disklabel to the Zip drive (see vpo(4) for the disktab(5) entry), creates the file
system and mounts the new file system on /mnt.
newfs_msdos /dev/da0
Create a new FAT type file system. Care should be taken not to run newfs(8) on devices that
already contain data, as this will result in the information being lost.
Many consumer devices such as digital cameras automatically create MS-DOS based file systems
when storing information such as images and videos. These file systems can be accessed by
specifying the file system type as msdosfs when using mount(8).